China Wholesale Screw Terminal Micro Switch Manufacturers - DK4-BZ-002 – Tongda


China Wholesale Screw Terminal Micro Switch Manufacturers - DK4-BZ-002 – Tongda

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Sticking for the principle of "Super Quality, Satisfactory service" ,We have been striving for being a superb small business partner of you for Waterproof Button , Heavy Duty Micro Switch , Push Button Switch 22mm , The principle of our company is to provide high-quality products, professional service, and honest communication. Welcome all friends to place trial order for creating a long-term business relationship.
China Wholesale Screw Terminal Micro Switch Manufacturers - DK4-BZ-002 – Tongda Detail:

DK4-BZ-002-

(The defining characteristics of operation)

(Operating Parameter)

(Abbreviation)

(Units)

 pdd

(Free Position)

FP

mm

(Operating Position)

OP

mm

(Releasing Position)

RP

mm

(Total travel Position)

TTP

mm

(Operating Force)

OF

N

(Releasing Force)

RF

N

(Total travel Force)

TTF

N

(Pre Travel)

PT

mm

(Over Travel)

OT

mm

(Movement Differential)

MD

mm

Switch technical Characteristics

(ITEM)

(technical parameter)

(Value)

1

(Electrical Rating) 10(1.5)A 250VAC

2

(Contact  Resistance) ≤50mΩ( Initial value)

3

(Insulation Resistance) ≥100MΩ(500VDC)

4

(Dielectric Voltage) (between non-connected terminals) 500V/0.5mA/60S
(between terminals and the metal frame) 1500V/0.5mA/60S

5

(Electrical Life) ≥10000 cycles

6

(Mechanical Life) ≥3000000 cycles

7

(Operating Temperature) -25~105℃

8

(Operating Frequency) (electrical):15 cycles(Mechanical):60 cycles

9

(Vibration Proof)

(Vibration Frequency):10~55HZ;

(Amplitude):1.5mm;

(Three directions):1H

10

(Solder Ability): (More than 80% of immersed part shall be covered with solder) (Soldering Temperature):235±5℃(Immersing Time):2~3S

11

(Solder Heat Resistance) (Dip Soldering):260±5℃ 5±1S(Manual Soldering):300±5℃ 2~3S

12

(Safety Approvals)

UL、CSA、TUV、ENEC

13

(Test Conditions) (Ambient Temperature):20±5℃(Relative Humidity):65±5%RH

(Air Pressure):86~106KPa

Analysis of the overall operation flow of the micro switch

The overall operation process of the micro switch is detailed:
①Operating pressure OF: It is added to the button or the actuator to make the switch produce the maximum force required for forward action (connecting or disconnecting the circuit).
②Reverse operating force RF: The minimum force that the button or actuator can bear when the switch is reversed (disconnected or connected to the circuit).
③Contact pressure TF: The pressure of the static contact point when the button or actuator part is in the free position, or the pressure of the dynamic contact point when the button actuator part is in the limit position.
④Free position FP: The position from the highest point of the button or actuator to the base line of the switch mounting hole when the switch is in the normal state and is not subject to external force.
⑤Operation position OP: When the switch button or actuator component is in a positive action, the position from the highest point of the button or actuator component to the base line of the switch mounting hole.
⑥Restore position RP: When the switch button or actuator component is in reverse action, the position from the highest point of the button or actuator component to the base line of the switch mounting hole.
⑦Total movement TTP: The maximum position that the switch button or actuator component can allow to move when it is working.
⑧ Action stroke PT: The maximum distance from the free position of the switch button or actuator to the positive action position.
⑨ Overrun travel OT: The switch button or actuator component continues to move downward from the positive action position, and the distance to the limit position that does not end or damage the mechanical performance of the switch, usually takes the minimum value.


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China Wholesale Screw Terminal Micro Switch Manufacturers -
 DK4-BZ-002 – Tongda detail pictures


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We usually continually offer you the most conscientious consumer services, along with the widest variety of designs and styles with finest materials. These initiatives include the availability of customized designs with speed and dispatch for China Wholesale Screw Terminal Micro Switch Manufacturers - DK4-BZ-002 – Tongda , The product will supply to all over the world, such as: Namibia , Dubai , Houston , Our company now has many department, and there have more than 20 employees in our company. We set up sales shop, show room, and product warehouse. In the meantime, we registered our own brand. We've got tightened inspection for quality of product.
  • In China, we have many partners, this company is the most satisfying to us, reliable quality and good credit, it is worth appreciation.
    5 Stars By Sabrina from Armenia - 2018.11.22 12:28
    The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Daniel Coppin from Vancouver - 2018.12.28 15:18
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